Ventilated fireproof stove-inclosure unit



May 28; 1929. w, so 1,714,823

VENTILATED FIREPROOF STOVE INCLOSURE UNIT I 4 Sheets-Sheet '1.

Filed Sept. 1924 mvcmto p I w a ra 450 6 3 G How 10,134

May 28, 1929. H. w. SOPER V E INTILATED FIREPROOF STOVE INCLOSURE UNITFiled spt- 1924 4 Sheets-Sheet 2 H. W. SOPER VENTILATED FIREPROOF STOVEINCLOSURE UNIT May 28, 1929.

iled Sept 4 Sheets-Sheet 4 Sheets-Sheet H. w. SOPER VENTILATED FIREPROOFSTOVE INCLOSURE UNIT Filed Sept Patented Ma as, 1929.

entree sew-ass w. scene, or pe son, ivrIcHiGAn.

Application filed September 8, 1924. Serial No. 7,385,482.

This invention relates to a structure which is adapted to be placed asaunit, within a building, to provide an extension for a room thereof andwhich extension or compartment is arranged to serve as a-kitchen forcontaining a cooking stove and other necessarycooking utensils andmaterials.

Anobject of the inventionis to provide kitchen unit which maybereadilyset within an opening inthe wall of a building and arrangedtovclose saidfopening, and provided with a closure for closing theopening into the unit whereby the compartment formed by the unit may beshut off from the room of the buildin intowhich it opens andisconc'ealed from view. A further object is to, provide a fire proofunitary structure for housing a stove and which unit may be tightlyclosed to protect the building against loss by fire caused by the use ofthe stove, and within which unit cooking may be done without theoccupants of the house being annoyed by odors. v,

A further objectis to provide an arrangement whereby .adraft is createdthrough the unit to 'draweolf fumes, smoke and odors, and to ventilatethe room into which the device opens. It is also an object to provide aunit structure which is inadeup of detachable parts or sections andwhichmay be cheaply constructed and installed, the construction beingsuch as to facilitate installation and lessen the cost of transportationand handling, and which unit when installed willpresent the appearanceof a built-in part of the building and will have, the ,appearancealso ofa cupboard or cabinetwith the doors flush with the room wall. v a H Afurther object is to provide a unitary structure for thep'urpose Whichmay be detaehably set .within 'an opening in the wall and forms, a tightclosure for said openingand the construction of whichunit issuch as tovefi'ectuallyexclude the exteriorcold or heat and is made up ofdetachable sections which when. set up areso fitted together as toeffectually exclude the elements and a knockdown structure is providedwhich may be cheaply transported to and assembled at the placeofinstallation. n

A further object is to provide a structure of the character describedwhich jmay be conveniently placed withinan opening'in the outside wallof the building toproject beyond said walljand the construction of whichstructure is such. to provide an insill'ating air the back wall 2, the

space withinthejwallsof the structure, and the root-portion is-alsoprovided with an air space and with a ventilating canopy andflue.

v With the above and other ends inview, the invention consists inv thellatters hereinafter set forth and moreparticularlypointed.out

in the appended claims reterencebeing had to theaccoinpanying drawingsin which Figure 1 is a perspective view of a'kitchen unit-illustrativeof the invention and set up ready for installation;

. F 2 is a perspectiveview of the several detachable sections of theunita-nd showing these sections separated to moreclearly dis-- closetheir-construction and manner of'assembly;

Fig. 3 through the unit with toshorten the figure;. I r I Fig, is ahorizontal section of th e same with pertions broken away to reduce thefigurein width; j V

F 5, 6,7 and 8 are perspective details showing interlocking edgeportions of. bottom and side walls ofthe structure; and

portions broken away Fig. 9 is a front elevation of, the unit showingdoors for closing'the front of'the same in openposition and astove placewithin the compartment formed by the unit The structure comprisingtheunit embodying the present invention consists of atop or roof section1, a back wallsection 2, sidewall sections 3 to the forward edges ofwhich doors 4 are connected by hingesfi, and a bottom or floor section6. The back wall 2 and side walls 3 are preferably formed hollow and ofinner and outer sheet metal plates and 8 respectively, which are'spacedapart by wood strips 9 extending along the edges of the plates; andforming a spaeing frarne to space part the sheet metal plates formingthewall. In a like manner the back wall oiisection 2 is formed of innerand outer sheet-metal plates 10 and 11 which are spacedapart by a likewood frame 9 and the bottom or floor section 6 comprises a wood flo or12 which is covered by an inner sheet 1netal-c0vering13 and an outerlike covering 141-. 'The meeting edges of the back and side walls andot' the floor section and these walls, are all torinedlto interlockin-such a manner that they may be readily assembled ordisassembled, andwill pr'o- 'vide' air tight and water proof join'ts,; To

provide such an interlocking edge portion, for side edges are pro v dedwith a aha-anal an 15 {formed er 11 eta].

1s a transverse vertical section of the channel and spaced therefrom toprovide a groove 16 for Cal " joint is secured andthe parts the purposeof receiving the'edges of the metal sheets 10 and 11. This channel alsoextends across the upper edge of the back wall to form an edge portionfor engagement with the roof section 1 of the structure.

The side wall sections 3 are formed at their rear edges with a. channelto receive the edge channel of the rear wall and this channel formed onthe side walls is constructed by bending the edge portion of the metalplate 7 of'each wall against theouter side edge of the frame 9, thenceoutwardly longitudinally 'of the wall, and thence inwardly, it'orming achannel 19'to receive and embrace the edge channel 15 of the back wall.The edge portion of the outer plate 8 of each side wall is extended pastthe frame 9 and in contact with thelongitudinally extending portion orbottom of the channelformed by the inner plate 7, and-then is bent atright angles to engage the outer side of the outer flange 17 of thechannel and then bent over the edge of this flange andformed inwardlyagainst the inner side thereof, forming a loop portion 18 to embrace andstrengthen the outer flange 17 of the channel 19 withinwhich the edge ofthe back section is adapted to fit closely. lVhen these edges are soassembled, they may be secured together detachably by means of screws 20(Fig. 4) passing through the outer flange of the channel, through theedge portion of the back wall, and into the wood liller 90f the sidewall. These screws tend to bend. the outer flange 17 of the channelinwardly against the back wall and thus a very tight are firmly heldtogether. The channel strip 15 reinforces and stiffens the edge of theback wall to obviate liability of damage to the parts duringtransportation, and the channel formation on the side walls, the outerflange of which is reinforced by the overturned portion 18, also forms astrengthening and stiffening member for the edges of the side walls orsections.

The forward edges of the side wall sections are each formed by bendingthe edge portion of the metal plate 8 around and against the forwardedge of the'filler O and thence inwardly as at 21 against the inner faceof the filler, as shown in Fig. l, thus securely fas tening the forwardedge of said plate to said filler, and the forward edge portion of theplate 7 is formed across and upon the inturned edge portion of the plate8 which lies against the filler and is extended for a distance beyondthe outer surface of the plate 8 and folded backwardly upon thisextended portion to form a laterally outstanding flange 22 of doublethickness of metal, the free edge portion'23 of the metal being formeddown upon the outer surface of the plate 8 and secured thereto in anysuitable manner. The

leaf of each of the hinges 5 is-passed plates 7 and 8 are thus firmlyheld in place upon the filler strip 9 and the forward edge of'this stripis protected and the forward edge of the wall is strengthened andstiffened by this folding over of the two edge portions of the twoplates of the wall. The plate 7 is also formed with the laterallyoutstanding flange 22 which is adapted to overlap and lie upon the innersurface of the wall of the building within an opening in which the unitis inserted, and thus the crack or opening between the unit and the edgeof the wall opening of the building is completely closed when the unitis in'place, to provide a tight joint and to assist in holding the unitinv place within the opening in'the wall.- V The doors t are attachedtothe forward ec ges of the side wall sections by means of the hinges 5with these doors lying flat against the edge face of the side wallsformed by the folded over edge portion of the plate 7 One through anopening in the flange 22 and the leaf is secured in any suitable mannerto the side wall by screws or other fastening means passing through theleaf and into the filler strip 9 with the leaf lying flat against theouter side of the side wall section.

The doors 4 are also preferably made of sheet metal plates 24: and 25with the edge portions of the plate 25 folded over the edge portions ofthe plate 24 to stiffen the edges of the doors, and panels are providedin each door by spacing the central portion of the outer plate from theinner plate, thus providing an air space between the plates for theaurpose of preventing warping and to insulate the door against high heatwithin the kitchen unit. These walls are spaced apart by means of afiller frame 26 which also forms a frame around a window 27 in the doorand adjacent the floor unit 6 near the lower edge of each door,'a seriesof openings 28 is providcd for admitting air from the room ofthebuilding into the compartment or interior of the kitchen unit when thedoors are ti ght ly closed.

The lower edge of each side wall section 3 is formed to interlock withthe sideedges of the floor section 6 and a like edge formationisprovidedupon the lower edge of the back wall section and the back edgeof the floor section for the same purpose. The side and back walls areformed with an outer downwardly extending reinforced flange 29 and alsowith an inner parallel downwardly extending flan go 30, and the side andback edges of the floor section are formed with an upwardly extendingreinforced flan e 31 to engage between the flanges 29 and 30 on the sideand back walls. The flange 31 is formed by bending the edge portion ofthe sheet metal 13 downwardly against the outer edge of the floor board12, thence outwardly and then upwardly providing a channel 32 the outerflange of'which floor section. ing the edge portion of the plate 7outwardly of the unit and may forms a part of the flange 31, and theplate 14 is carried beyond the edge of thefloor 12 thence v b'entupwardly against the outer face of the side flange of the chann'el'32',thence over the edge of said fla-nge'and downwardly against the innersurface thereof, to reinforce said flange and to stiffen the edge.portion ofthe The flange9 is formed by bendagainst the lower edge of thefiller 9, and

"thence downwardly with its outer face in the plane of the outer face ofthe filler and the plate 8 is extended downwardly in contact with thisouter face and folded over the clownwardly extendlngportion and over oneside flange of a channel member 33 which hes 1n contact with the loweredge of the wall section. The flange-29 is thus formed of fourthicknesses of metal with the edge portions 1 "of the plates 7 by thefolded to give double strength and thickness to the flange 30 which isadapted to be engaged and fit within the channel 32, thus forming atight joint between the bottom, side and back wall sections, which maybe detachably secured together in any suitable manners The roof or topsection 1 of the unit comprises a box 'like structure formed of a singlethickness of sheet metal with a front side or panel 34 and back wall35'and end walls 36'. The top wall 37 of this section forms the roof beinclined downwardly toward the back wall 35 so that when theunit isplaced within an outer wall of a building,

front and along the ends the water will drain off. The front panel 3%and ends 36 are interlocked with the edges of the roof 37 by folding theedge portion of the metal of these walls over an upturned edge portionof the roof plate, thus forming an upstanding flange 38 (Fig. 3) acrossthe Of the roof the flange across the front being adapted to engage theinner surface of the wall of the building when the unit is inserted in.an open ing in such a wall, to close the crack, and make a tight joint,and this flange 38 at the ends of the unit prevents the water fromflowing over said ends and running down upon the outer surface of theend'walls of the unit. At the outer rear end of the unit, the roof 37 isinterlocked with the wall 35 by bending the edge portionof the roofmetal over an outturned portion of the plate 35, thus forming anoutstanding flange 39 which serves the purpose of caves for thestructure to shed the water therefrom at the outer rear end of theunit.-

A channel 40 is formed along rear edge and end walls of the lower sideand back wall wall of a'buildingbut' may suitable flue of the buildinunits 2 and 3, thus providing afirm seat for the top or roof section andalso interlocking this section with the upper edges of the'walls of thestructure. The upper or roof section is not only held firm-ly in placeby this interlocking arrangement but assists in holding the'upper edgesof the side and back Walls. A canopy 41 of conical. shape is providedwithin the interior of the box-like structure "of the roof section, withthe lower edges of this conical canopy-or hood secured to the loweredges of the top section and withiits side walls converging-toward aflue or pipe Ail-which extends out through the roof 37 and is: providedwith a'suitable regulating the draft through the interior of thekitchenunit. This canopy 41 forms an upwardly tapering top wall for the chamberor interior of the kitchen unit s'othat the draft created'by the flue 42will draw off smoke, odors or fumes from the interior of the structureand will also draw odors from the room of thebuilding into therefor.

A unit structure isthusprovidedwhich may be readily placed Withinanopening in the wall of a-room of'a building to provide an extension forthis room within which a stove which the unit opens and provideventilation .of any type suitable for co'okingmay be placed, access tothe unit being gained by the opening of doors which form the frontwallof the unit and close the opening in the wall of the building. Thecompartment formed by the unit may thus be closed up at any time and allthat will be seen from the interior of the room of the building will hethe front end of the unit which will have the appearance -of a cabinetset into the wall and may be made very attractive *by a proper panellingof the doors and of the front which may be mounted as shown in Figs. 1,3 and 9, a clock {l4 and suitable switches l5 and 46 for electricalconnections. 7

As this entire unit is made up of separable section-sdetachablyinterlocked, the structure may be readily installed-and maybeshipped damper 43 for this flue from panel 34 within in the knock-down.The structure is also such .thatit forms a -fire proof unit particularlyadapted to house a stove, the doors l may be closed and the fireconfined so that no-harm i will be done. The'unit is particularlyadapted for installation in an opening inthe outer with equal facilityand usefulness be installed within an opening in an inside wall orwithin a space provided therefor in constructing I a buildin and theventilating flue 42 connected with a Changes may be 'made in theparticular construction and-arrangement of parts, within the scope ofthe appended claims without departing from the splrit of the inventionand I do not therefore limit myself to the particular constructionshown.

and a movable closure lVhat I claim is V 1. A knockedown sectional unitadapted to be placed within an opening in a wall ofa building to form afire-proof extension for a room of the building, said unit comprisingtop and floor sections and end and back wall sections, all of saidsections being formed substantially fire-proof with inter-engaging edgeportions, said floor section forming an extension of the floor of theroom, said top section including a canopy with a fine leading from saidcanopy and a front wall to fill the upper part of the opening in theroom wall, I for the front side of said unit, said'closure being ofavertical length substantially equal to the vertical length of said endand back wall sections and extending from the room floor-to the loweredge of saidifront wall of'the top section and from one end wall sectionto the other to expose. the entire interior of the unit between said endsections, top and floor sections.

2. A knock-clown sectional unit adapted to be placed within an openingin .awall of a building to form a fire-proof extension for a room of thebuilding, said unit comprising top and bottom sections. and end and backwall'sections, said top section being a box-like structure and includinga canopy housed thereinwith a flue leading fromsaid canopy through thetop of the section, certain of said sections being formed of sheet metalplates spaced apart to provide hollow walls for the sections and certainof said sections being formed with grooves along their edges to receiveedge portions of adjacent sections and with front edge flanges tooverlie and close the space between the wall openings and. said unit,means for detachably securing said sections together along theirinterlocking edge portions, and a sheet metal closure for the front ofsaid unit attached to certain of said sections adjacent said v flangesto close the front of the unit substantially flush with the innersurface of the room =wall, said closure having dimensions substantiallyequal to the vertical length of theiend and'baclr wall sections andbeing movable to expose the interior of the unit between the canopy andthe bottom section. a

3. A fire-proof unit for placement within an opening in a wall of abuilding to form the building, said unit having hollowvertical walls anda boxlike topsection providing a roof and an upward extension of saidwalls, a conical canopy within said top section connected at its lowerend to the bottom edge portion of said top section, and aflue'leading'from the apex of said canopy and extending through the roofof said top section, said top section providing an air space betweensaid canopy and roof.

1-. A knock-downsectional fire-proof unit for insertion in an opening ina wall of a building to form an extension of a room of vi dingextensions of -tions of said'shcet metal provided channel member,

the building, said unit including vertical hollow sheet metal end andback walls detachably connected alon their meeting edge portions and abox-like top section providing up 7 j opens into the room of thebuilding andwhich door when closed is substantially flush with the innersurface of the room wall, said door being provided with an opening nearits lowor end adjacent the floor to admit air from the room of thebuilding to theinterior of the unit when the door is closed.

5. A fire-proof unit for insertion in an opening in wall of a buildingincluding hollow end and bacli walls formed of spaced apart. sheet metalplates v with said walls formed with interlocking edge portions, aboxlike topsection. forming a roof and prothe walls of the unit andprovided 'with an internal canopy secured thereto and forming the entireceiling of the interior of said unit with a space between said roof andcanopy of said section, a'flue connected to said canopy and extendingthrough said roof, a floor section for said unit including inner andouter sheet metal plates anda wood filler between said plates, saidfloor section-extending substantiallyin the horizontalplane of the roomfloor of the building, to form a continuation thereof,

of one of the end wall sections and provided with an opening nearitslower end to admit air to the unit. r V i l 6. A knock-down fireproofunit for insertion in. an opening in a wall of a building to form anextension for a room of the building, said unit comprising a topsection, end and back w ail sections and a floor section, said wallsections each {comprising a frame and inner and outer sheet metal covcrin g with edge porcovering folded over said frameand interlocked tosecure the same to said. frame and said edge portions being also foldedto form a groove along the edge of the unit and a flange forming oneside of said certain of said wall sections being with a channel memberalong an edge of the section with said edge portions of said sheet metalinterlocked with said andsa'id top section com prising a rootanddepending walls and an groove,

interior conical canopy with the lower edge portions of said canopysecured to the lower portions of said Walls and its upper end o'pen-'end and back wall sections; means for securing the lower ends of saidend and back wall sections in interlocked engagement with said floorsection; and fire-proof doors hinge-con} nected to the forward edges ofsaid end wall sections to close the openingvfroin the interior of saidunit into the room of the building, said doors being provided-adjacentthe floor section with openings to admit air to the interior of the unitwhen said doors are closed.

In testimony whereof I aflix my signature;

HOWARD W. sores

